Microsoft Agent Voices

Hi. I'd like to list out the voices that I have installed on a computer and to use them with Microsoft Agent, something seen at this site: http://www.whipflash.com/vamr/voices.jpg . I'd also like to set the agent to use that voice.

Some test code I'm using:
  Agent.Characters.Load('MyAgent','C:\WINDOWS\msagent\chars\merlin.acs');
  Agent.Characters.Character('MyAgent').LanguageID:=$409;
  Agent.Characters.Character('MyAgent').Show(0);
  Agent.Characters.Character('MyAgent').Speak('apple', '');

Thanks in advance,
David Burban